<!DOCTYPE html>
<title>Tests basics of the 'position-anchor' property</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#propdef-position-anchor">
<link rel="author" href="mailto:xiaochengh@chromium.org">
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../../css/support/parsing-testcommon.js"></script>
<script src="../../css/support/computed-testcommon.js"></script>
<script src="../../css/support/inheritance-testcommon.js"></script>
<script src="../../css/support/interpolation-testcommon.js"></script>

<div id="container">
  <div id="target"></div>
</div>

<script>
// position-anchor: <anchor-element>
// <anchor-element> = auto | <dashed-ident>
test_valid_value('position-anchor', 'auto');
test_valid_value('position-anchor', '--foo');
test_invalid_value('position-anchor', 'none');
test_invalid_value('position-anchor', 'foo-bar');
test_invalid_value('position-anchor', '--foo --bar')
test_invalid_value('position-anchor', '--foo, --bar')
test_invalid_value('position-anchor', '100px');
test_invalid_value('position-anchor', '100%');

// Computed value: as specified
test_computed_value('position-anchor', 'auto');
test_computed_value('position-anchor', '--foo');

// Initial: auto
// Inherited: no
assert_not_inherited('position-anchor', 'auto', '--foo');

// Animation type: discrete
test_no_interpolation({
  property: 'position-anchor',
  from: '--foo',
  to: 'auto',
});
</script>
